Apparatus for use in treating wood.



No. 611 529] Patented lune I2, 1900. S. E. HASKIN.

APPARATUS FOR USE IN TREATING WOOD.

(Application filed Feb. 25, 1898.) No Model.) 3 sheets sheet I.

II I fi-n m/ No. 651,529. Patented June 12, I900.

s. E. HASKIN. APPARATUS FOR USE IN TREATING WOOD.

(Application filed Feb. 25, 1898.)

. (No Model.) 3 Sheets-Shani 2.

YHE Nonflns PETERS 50., Puowmma, WASHINGTON. n. c.

Patented lune I2, 900.

8. E. HASKIN. APPARATUS FOR USE IN TREATING WOOD.

(Agglicatiun filed Feb. 25, 159B.

3 SheetsvSheet 3 (No Model.)

Arm

J 5 fa 7 M7000 we NORRI3 Farms ca, FHOYO-LIITHQ, WASHINGTON. o. c.

UNITED STATES PATENT Fries.

SAMUEL EDWVARD I-IASKIN, OF LONDON, ENGLAND.

APPARATUS FOR USE IN TREAT|NG WOOD.

SPECIFICATION forming part of Letters Patent No. 651,529, dated June 12, 1900.

Application filed February 25 1898. Serial No. 671,661. (No model.)

To ctZZ whom it may concern.-

Be it known that I, SAMUEL EDWARD HAS- KIN, a citizen of the United States of America, and a resident of lVestminster, London, England, have invented certain new and useful Improvements in Apparatus for Use in Treating Wood, of which the following is a specification.

This invention relates to certain improvements in apparatus for use in treating wood,

' and more especially to apparatus in which the Wood is placed in a chamber and exposed to the action of heated air caused to circulate under pressure in such chamber. In such apparatus it is necessary or desirable to hermetically close the chamber after the charge of wood has been placed therein, and inasmuch as such chamber is usually large and the door thereof heavy and difficult to manipulate so as to secure exact closure it is desirable to provide means by which such door may be moved into or from its closing position and tightly secured when in place with the smallest Waste of time and expenditure of labor. It is also of great importance to distribute the air-current in the chamber and cause it to move therein in such a Way as to operate uniformly and efficiently on all the wood therein, and it is also necessary to so arrange any such means of distributing the air in such a manner that it may not serve as an obstacle to the insertion and removal of the charge of wood and to the closing and opening of the door. I provide for these objects according to the improvements herein-' after described.

Reference beinginade to the annexed drawings, Figure 1 is an end elevation; Fig. 2, a side elevation of one end of my improved wood-treating cylinder, showing the door for closing the same and the mechanism for operating the door. Fig. 3 is a Vertical longitudinal central section of the same. Fig. 4 is a longitudinal vertical section of the woodtreating chamber on a smaller scale, the mechanism for operating the door being omitted.

The chambers being in the form of horizontal cylinders A, Fig. 4, having usually one fixed end or head 0 and one removable end or door 13, I place above the end of the cylinder A where the door B is located bearings D, Fig. 1, for a horizontal shaft E, carrying arms F or to lift it outward and upward until it 021- tends horizontally away from the cylinder end at a sufficient height to enable the truck loads of timber to be freely run into or out of the chamber A. Around the cylinder end is a series of adjustable staples M, and the door 13, preferably bellied inward, is carried by a central spindle N, having fixed bearing in the end of its supporting-arm F. On this spindle, part of which is screw-threaded at 0, there is adjusted a screw-threaded nut P in one or more parts, engaging a collar Q, movable longitudinally but not rotarily on the spindle. To this collar are attached radiating arms R, guided radially upon the outside of the door B in guides S, fitted with rollers T and adapted when the door is closed to stand, respectively,'opposite the staples M aforesaid on the cylinder end. In such position by the rotation of the nut P and the consequent 'move ment of the collar Q along the spindle N toward the door 13 the radiating arms R are forced outward into said staples M and, acting as wedges or as levers, cause the door to be firmly and forcibly pressed against its seat at the end of the cylinder. To revolve the nut P, the exterior of the latter may be toothed, as at U, to engage atoothed pinion V, adapted to slide along a prismatic shaft W, carried in bearings in the arm F and sliding collar Q and revolved by a hand-crank directly or through suitable gear X Y.

Z is a locknut for use, if desired.

In order that the current of air may be efficiently directed in and along the cylindrical chamber, it is brought into the chamber from the heating-stove through a pipe at, extending the length of the cylinder A, inside the latter, preferably along thebottom of the cylinder, this pipe terminating at or near the door of the cylinder with an open end I). A removable diaphragm c is fitted across the cylinder in such a manner as to form an end compartment 01 between it and the closed door the same time as the doorB and by the same action, it may be fastened to the door, and it will be cut to such shape that it will clear the parts of the cylinder and the pipe when moving into and from the latter, and when in place to compensate for such clearance it may rest against a flange or seating h in the cylinder. 7

As the air-current being hot has a tendency to move along in the top of the cylinder, it is desirable at intervals to draw off the colder airfrom the bottom, for which purpose there are provided a series of cocksjj, Figs. 1 and 4, with any suitable gear, such as is l m n 0, for opening and closing them by hand.

I claim as my invention in apparatus for treating wood and the like- 1. The combination with the chamber A and removable door 13 of a perforated plate 0 removable with said door and adapted when the door is closed, to partition 01f a compartment cl at the end of the chamber A, a seating h for said plate a, a pipe a opening into said compartment d, a perforated plate 6 at the other end of said chamber A partitioning off a compartment f and an outlet 9 to said compartment f substantially as and for the purpose set forth.

2. The combination with achamber A and removable door B at one end thereof of a perforated plate 0' removable with said door and adapted when the door is closed to partition ofi a compartment 01 at the end of the chamber, a seating 71. for said plate a a pipe a entering at the closed end of said chamber A extending. along inside the same and having its open mouth in the compartment 61 a perforated plate at the other end of said chamber partitioning oif a compartment an outlet g to said compartment f and a series of outlet-cocks at intervals along the bottom of the chamber A substantially as and for the purpose set forth.

In witness whereof I have signed this specification in the presence of two witnesses.

SAMUEL EDWVARD IIASKIN. Witnesses:

E. BOWEN, CHAS. ROCHE. 

